CN1236659A - High-absorptivity filter plate with deodouring and detoxicating functions and its preparing process - Google Patents
High-absorptivity filter plate with deodouring and detoxicating functions and its preparing process Download PDFInfo
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- CN1236659A CN1236659A CN 98101885 CN98101885A CN1236659A CN 1236659 A CN1236659 A CN 1236659A CN 98101885 CN98101885 CN 98101885 CN 98101885 A CN98101885 A CN 98101885A CN 1236659 A CN1236659 A CN 1236659A
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- lamellar body
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Abstract
A high-absorptivity filter plate with deodouring and detoxicating functions is prepared from catalyst, plant starch (sweet potato starch) paste, liquid-state polyvinyl alcohol (BF-17) and activated carbon through preparing raw materials, stirring, shaping, baking, deacidifying, cooling and washing. It features high water absoptivity, easy cleaning, high filter performance and integration of dedouring with detoxicating.
Description
The present invention is a kind of filtration lamellar body and processing procedure thereof, is meant a kind of multi-functional filtration lamellar body and processing procedures thereof with deodorizing filtering poison high-absorbility such as suction easy cleaning, good filtrability, the deodorizing of filter poison that integrate especially.Belong to the filter articles for use.
The function of screen pack mainly is that the impurity that will be contained in air or the water is separated filtration, so that obtain more clean air or water quality, for use; If with existing cavernous body filter material is example, though it has the effect of impurity screening, but tool is not filtered other functions such as malicious deodorizing and elimination peculiar smell, the effect of being reached is limited, and cavernous body in use for some time, owing to do not consider emphatically in the fortification substance structure in its combination ingredient, so very easily cause rottenly and aging, the shortcoming of lacking service life appears.
Based on overcoming the powerful characterization of adsorption that activated carbon has, so in the known techniques in order to reach the effect of deodorant to taste, implement spraying of activated carbon through regular meeting on the filtering screen surface, this mode only can spray activated carbon in material surface and can't brute force adhere to, come off at once (as shown in Figure 4) when meeting and washing or touching, and,, thereby limited to filtering function so the content of activated carbon can not be high only for adhering to; Moreover, come off in order to prevent the activated carbon that is attached to material surface, through the surface-coated skim adhesive-bonded fabric of the screen pack of being everlasting,, this mode concentrates yet also only limiting to the activated carbon that will come off, and do not possess the essence effect of filtration and increase cost again.
The processing procedure of another deodorizing filter screen mainly is to add ion exchange resin in liquid pva (PVA) solution in advance, or activated carbon, or coconut palm slag carbon, make it form thick shape solution, and then with this thick shape solution interpolation acidizer liquid, then again it is soaked on the adhesive-bonded fabric, at last this being soaked into wet cloth dehydrates under 70-100 ℃ of temperature and 30-120 minute condition of heating, and make this screen pack, yet this technology contents had not but been considered activated carbon and had been had the function of powerful absorption ambient substance, at the beginning of flow processing, promptly add activated carbon in advance, be in adsorbing thick shape solution in advance and be coated on activated carbon, and after the flow processing that this mistake takes place, even when implementing to dehydrate step afterwards, activated carbon will be coated on interior fully and can't filter outside air via the air-vent circulation, that is activated carbon is will be by resistance dead and can't reach filtration, the filter poison, functions such as deodorizing (as shown in Figure 5); Simultaneously, the processing procedure of this deodorizing filter screen had not also been considered functions such as the stability of deodorizing filter screen, structural and water imbibition.
The purpose of this invention is to provide a kind of multi-functional filtration lamellar body and processing procedures thereof such as suction easy cleaning, good filtrability, the deodorizing of filter poison that integrate with deodorizing filtering poison high-absorbility.
A kind of filtration lamellar body and processing procedure thereof with deodorizing filtering poison high-absorbility of the present invention, it is to comprise the following steps:
1. material preparation step: it is polyvinyl alcohol (PVA) to be mixed with water to heat be stirred to no granularly simultaneously, and cooling becomes a raw material more afterwards; And plants starch and water heated be stirred to pasty state simultaneously, then lowering the temperature becomes cold pasty state raw material again; And purchase raw materials such as the agent of helping of reaction, activated carbon and cellulosic lamellar body such as catalyzer contact agent, catalyst;
2. mix step: be that cold pasty state raw material is mixed with catalyzer contact agent, and fully stir into a solution, and this solution and PVA raw material are mixed into a solution, then again with this solution and catalyst mix and fully stir into saturated solution, add activated carbon at last again and finish and mix step;
3. step is covered: evenly overlayed on above-mentioned saturated solution on the cellulosic lamellar body;
4. foaming step: mainly tie up to reacting furnace inside and carry out, wherein the temperature of reacting furnace system can regulate according to different demands, uses the control blowing temperature, simultaneously, the speed that the length of reacting furnace and material carry out also is to regulate according to different demands, uses the control foamed time;
5. the cooling step of lowering the temperature: make above-mentioned filtration lamellar body be returned to the normal temperature state;
6. clean compression step: enable to clean and filter lamellar body and present neutral speciality, and above-mentioned moisture content and the helping agent that is temporary in pore inside fallen in extrusion;
7. heat baking step: it is splendid and have a filtration lamellar body finished product of deodorizing filtering poison high-absorbility to enable to obtain a stability.
The above-mentioned steps flow process promptly can be made into a filtration lamellar body with functions such as suction easy cleaning, good filtrability, the deodorizing of filter poison in regular turn.
Wherein, the blowing temperature of this foaming step is about 60 ℃-200 ℃, foamed time about 10 minutes-10 hours.
Wherein, this foaming step mainly is can utilize temperature and time to make raw material produce bridging action and abundant bond and can repel moisture content, and it is one structural good and have a filtration lamellar body of many pores shape that it is shaped to.
Wherein, this lining step system can be overlayed on one with saturated solution and is on the cellulosic lamellar body of continuous feed status, and this cellulosic sheet system can select the thickness of difference according to demand, is covered by an amount of saturated solution.
Wherein, it is to set up a depickling step according to need after foaming step, will add nertralizer via the lamellar body that filters that may slightly be acidity after handling in good time, causes the filtration lamellar body to present neutral reaction, to eliminate the organic acid of remnants.
A kind of filtration lamellar body with deodorizing filtering poison high-absorbility of the present invention mainly includes catalyst, the catalyzer contact agent that accounts for 4.5～10.0% percentage by weights, the pasty state plants starch that accounts for 28～47% percentage by weights, the no granular polyethylene alcohol of liquid state (PVA) that accounts for 47～65% percentage by weights that accounts for 3.6～10.0% percentage by weights, activated carbon and the cellulosic that accounts for above-mentioned substance gross weight 0.3～180% percentage by weight.
Wherein, also can add the blowing agent that accounts for above-mentioned substance gross weight 0.015～0.06% percentage by weight in this material preparation step.
Wherein, the mixture that can be formed by tosilate (P-TOLUENE SULFONATE) and alkylsulfonate (ALKYL SULFONATE) of this blowing agent system.
Advantage of the present invention is: processing procedure is scientific and reasonable, and is simple.Can eliminate peculiar smell, filter poison and deodorizing according to the filtration lamellar body of this processing procedure gained, good permeability, thermal diffusivity is good, and the suction easy cleaning, is the good goods that gather multi-function in integral whole.
The present invention has following accompanying drawing:
Fig. 1 is the present invention's material preparation step schematic diagram.
Fig. 2 is the present invention's manufacturing process schematic diagram.
Fig. 3 filters the characteristic test figure of lamellar body for the present invention.
Fig. 4 is for being attached to the activated carbon spray in the known techniques screen pack surface and lining thin layer adhesive-bonded fabric schematic diagram.
Fig. 5 is died from the outer schematic diagram of air-vent of screen pack by resistance for activated carbon in the known techniques.
Fig. 6 can cooperate air-vent contact and screen pack flowing gas schematic diagram arbitrarily for activated carbon of the present invention.
Now be described as follows for embodiment and conjunction with figs.:
Please consult Fig. 1 simultaneously, shown in Figure 2, the present invention filters the preparation of lamellar body, at first need be ready for the catalyst (as the horse forint) that accounts for 3.6～10.0% percentage by weights, 4.5 the catalyzer contact agent of～10.0% percentage by weight (be as concentration 32% hydrochloric acid), pasty state plants starch (the moisture tapioca flour or the Cornstarch of 28～47% percentage by weights, in addition, the starch in this vegetalitas pasty state starch and the ratio of water are 1: 5～1: 10, embodiment was with expression in 1: 6), the no granular PVA (polyvinyl alcohol of the liquid state of 47～65% percentage by weights, BF-17, the product that system is made by Changchun chemistry limited company, this liquid state does not have the PVA among the granular PVA and the ratio of water, it is 1: 5～1: 10, embodiment system was with expression in 1: 6) and account for above-mentioned substance gross weight 0.3, (the ratio system of activated carbon can add the activated carbon of～180% percentage by weight according to need, certainly the higher shape fragility that heals of organizing of the ratio of activated carbon is the technology that must consider), and cellulosic (is good with lamellar body), also can consider to add simultaneously the materials such as blowing agent that account for above-mentioned substance gross weight 0.015～0.06% percentage by weight with respect to activated carbon.
After being ready for above-mentioned raw material, mainly be with PVA (polyvinyl alcohol in the material preparation step, BF-17) mix with water heat be stirred to simultaneously no granular, cooling becomes a raw material A more afterwards, and plants starch and water heated be stirred to pasty state simultaneously, then cooling becomes cold pasty state raw material B again, and catalyst mixture agent and become a solution C, again raw material A and solution C are mixed into solution D afterwards and add catalyst and mix step and become a homogeneous solution, helping of the reaction agent that catalyst system can make pasty state starch and liquid no granular PVA mix really, so mix step is cold pasty state raw material B to be mixed with catalyzer contact agent also fully stir into solution C, and this solution C and raw material A are mixed into solution D, and again solution D and catalyst mix are fully stirred into saturated solution, add activated carbon more at last and become solution E.
As for the last process that in saturated solution, adds activated carbon again, for the present invention is absolute important, generally the characteristic and the function that have high-tenacity absorption ambient substance because of activated carbon, if so at the beginning of flow processing, just add activated carbon in the lump, then activated carbon must mix and whipping process in the powerful cold pasty state material of absorption and be coated in, after the flow processing of this mistake takes place, even implement afterwards dehydration and during helping agent step, activated carbon is coated on interior at last fully and can't contacts with outside air by air-vent, that is activated carbon will extremely can't be reached good filtrability by resistance, filter functions such as malicious deodorizing and elimination peculiar smell, and be mixed into the technology that combines with activated carbon again behind the saturated solution really about above-mentioned pasty state plants starch and liquid no granular PVA in advance, also be the important invention of the present invention in this type of technical field, and this invention of great significance has changed known techniques and only activated carbon can have been sprayed in material surface can't brute force adhere to, the disadvantage that runs into washing or come off at once when touching, and activated carbon is will be by resistance dead and can't reach good filtrability, filter functions such as malicious deodorizing and elimination peculiar smell.
The flow process that raw material need be mixed in advance or prepare during material preparation step is as follows:
1. (polyvinyl alcohol BF-17) mixes with water, and is interpolation in 1: 6, and mixed PVA and water are heated to about 120 ℃, stirs simultaneously to make to be no granular attitude, cools the temperature to about 40 ℃ again and is a raw material A with PVA; Above-mentioned PVA mixes the back with water gross weight is about 350 grammes per square metres.
2. plants starch (tapioca flour or Cornstarch) and water are 1: 6 ratio, and the starch that will mix heats to about 90 ℃ with water, the while also stirring then be cooled to again about 40 ℃ in the pasty state, become cold pasty state raw material B; Above-mentioned starch mixes the back with water gross weight is about more than 160 grammes per square metres.
3. purchase the catalyzer contact agent of debita spissitudo, the hydrochloric acid of concentration 32% (except promoting reaction, also having foaming effect simultaneously) as shown in this embodiment, its weight is about more than 25 grammes per square metres.
4. purchase the catalyst of debita spissitudo, catalyst has the effect that helps to promote chemical change, is the Formalin of applicable concentration 32% in the present embodiment, and its weight is about more than 20 grammes per square metres.
5. purchase activated carbon, the percentage by weight of activated carbon system is about 0.3～180% of above-mentioned substance gross weight in the present embodiment.
6. also can consider to purchase blowing agent, blowing agent system is about 0.015～0.06 percentage by weight of above-mentioned each material gross weight in the present embodiment.
After finishing material preparation step, mix step immediately, the step blend step at first is cold pasty state raw material B to be mixed with catalyzer contact agent also fully stir into solution C, again solution C and raw material A are mixed into a solution D, then again with solution D and catalyst mix and fully stirred into saturated solution E, add activated carbon at last again and finish and mix step; Above-mentioned solution E is evenly overlayed on one subsequently again and can be on the cellulosic lamellar body of continuous feed status and finish the lining step, wherein this cellulosic sheet system can select different thickness to be covered by an amount of solution E according to demand; Enter foaming step afterwards again, foaming step mainly ties up to internal temperature and can be adjusted in 60 ℃-200 ℃ reacting furnace inside and carry out, about 10 minutes to 10 hours of foamed time, the temperature system of reacting furnace can regulate according to different demands, simultaneously, the speed that the length of reacting furnace and material carry out also is to regulate according to different demands, foaming step mainly is can utilize temperature and time to make raw material A and raw material B produce bridging action and abundant bond and can repel moisture content, it is one structural good and have a filtration lamellar body of many pores shape that it is shaped to, as for can being temporary in pore inside, in subsequent step, remove these moisture content of being ostracised, the wet shape that gets by this filters lamellar body, its contained activated carbon definitely can be powerful attached to filter surface or inside, cooperates pore to make the activated carbon gas and the filtering gas of contact flow arbitrarily; Cooling step lower the temperature afterwards again to the normal temperature state; Clean compression step afterwards again, enable to present neutral speciality and clean the filtration lamellar body, and aforementioned moisture content and the helping agent that is temporary in pore inside fallen in extrusion, and the high water absorbing capacity characteristic that the present invention had promptly is to make full use of the water absorption character of pore and raw material itself and a large amount of moisture content of being able to the reservoir absorption; Carry out heat baking step afterwards again and to obtain a stability splendid and have a filtration lamellar body finished product (as shown in Figure 6) of deodorizing filtering poison high-absorbility.
As shown in Figure 2 as can be known, the present invention also can set up the screen pack that may slightly be acid after a depickling step will be handled via above-mentioned steps according to need, add nertralizer (as soda water) in good time, cause and filter the neutral reaction that lamellar body presents PH7, eliminate remaining organic acid; Certainly, can't eliminate fully for preventing organic acid, also can prolong the flow process of cleaning step, it is residual to use thorough elimination organic acid, eliminates organic acid is easy to cause damage to the filtration lamellar body unfavorable factor.
The present invention also can consider to add the blowing agent of 0.015-0.06 percentage by weight, described blowing agent can be the goods of PNS as trade name, the goods of this PNS are commonly called as blowing agent (FOAMING AGENT) or dispersant (DISPERSING AGENT), it is the mixture of being formed by tosilate (P-TOLUENESULFONATE) and alkylsulfonate (ALKYL SULFONATE), the tissue of the filtration lamellar body made of condition can be comparatively loose according to this, that is air-vent is big and be cellular (POROUS) but not be honeycomb (CELLUAR), so it is better that the gas permeability of screen pack can be, though the use of blowing agent is common all in general textbook, but the present invention cooperate other different constituents unique technology that applies to filter lamellar body be strictly initiative, and it is very big to value on the industry and the enhancement on the effect.
Because present embodiment is when raw material mixes, can add blowing agent earlier and and after mixed active carbon again, make the filtration lamellar body of making to eliminate peculiar smell and deodorizing by activated carbon, and by the suitable interpolation of blowing agent, and the gas permeability and the thermal diffusivity of lamellar body are filtered in increase, the water absorption rate that particularly filters lamellar body also can be up to 276.8%, therefore for after adding blowing agent and activated carbon, make the made screen pack of the present invention have more ventilative easy cleaning, functions such as good filtrability and elimination peculiar smell and deodorizing are in one, more known screen pack only has single kind of function, and the present invention's filtration lamellar body has been promoted its practical effect greatly.
As for the present invention's filtration lamellar body have pull resistance good, prevent distortion, reduce deformation rate, characteristics such as flexibility is good, high water absorbing capacity then see also characteristic test figure shown in Figure 3, the figure illustrates test result and methods such as relevant destruction, pulling force, wearing and tearing, water absorption test.
Claims (8)
1. a filtration lamellar body and processing procedure thereof with deodorizing filtering poison high-absorbility, it is characterized in that: it comprises the following steps:
Material preparation step: its be with PVA (polyvinyl alcohol) mix with water heat be stirred to simultaneously no granular, cooling becomes a raw material more afterwards, and plants starch and water heated be stirred to pasty state simultaneously, then cooling becomes cold pasty state raw material again, and purchases raw materials such as catalyzer contact agent, activated carbon and cellulosic lamellar body;
Mix step: be that cold pasty state raw material is mixed with catalyzer contact agent, and fully stir into a solution, and this solution and PVA raw material are mixed into a solution,, add activated carbon at last again and finish and mix step then again with this solution and catalyst mix and fully stir into saturated solution;
Lining step: evenly overlayed on above-mentioned saturated solution on the cellulosic lamellar body;
Foaming step: mainly tie up to reacting furnace inside and carry out, wherein the temperature of reacting furnace system can regulate and use the control blowing temperature according to different demands, simultaneously, the length of reacting furnace and the material speed of carrying out also is to regulate and to use the control foamed time according to different demands;
Cooling cooling step: must make above-mentioned filtration lamellar body be returned to the normal temperature state;
Clean compression step: enable to clean and filter lamellar body and present neutral speciality, and above-mentioned moisture content and the helping agent that is temporary in pore inside fallen in extrusion;
Heat baking step: it is splendid and have a filtration lamellar body of deodorizing filtering poison high-absorbility to enable to obtain a stability.
The above-mentioned steps flow process promptly can be made into a filtration lamellar body with functions such as suction easy cleaning, good filtrability, the deodorizing of filter poison in regular turn.
2. a kind of filtration lamellar body and processing procedure thereof with deodorizing filtering poison high-absorbility according to claim 1, it is characterized in that: wherein, the blowing temperature of this foaming step is 60 ℃-200 ℃, foamed time about 10 minutes-10 hours.
3. a kind of filtration lamellar body and processing procedure thereof according to claim 1 with deodorizing filtering poison high-absorbility, it is characterized in that: wherein, this foaming step mainly is can utilize temperature and time to make raw material produce bridging action and abundant bond and can repel moisture content, and it is one structural good and have a filtration lamellar body of many pores shape that it is shaped to.
4. a kind of filtration lamellar body and processing procedure thereof according to claim 1 with deodorizing filtering poison high-absorbility, it is characterized in that: wherein, this lining step system can be overlayed on one with saturated solution and is on the cellulosic lamellar body of continuous feed status, and this cellulosic sheet system can select the thickness of difference by an amount of saturated solution lining according to demand.
5. a kind of filtration lamellar body and processing procedure thereof according to claim 1 with deodorizing filtering poison high-absorbility, it is characterized in that: wherein, it is to set up a depickling step according to need after foaming step, to add nertralizer via the lamellar body that filters that may slightly be acidity after handling in good time, cause the filtration lamellar body to present neutral reaction, to eliminate the organic acid of remnants.
6. the filtration lamellar body with deodorizing filtering poison high-absorbility is characterized in that: mainly include catalyst, the catalyzer contact agent that accounts for 4.5～10.0% percentage by weights, the pasty state plants starch that accounts for 28～47% percentage by weights, the no granular polyethylene alcohol of liquid state (PVA) that accounts for 47～65% percentage by weights that accounts for 3.6～10.0% percentage by weights, activated carbon and the cellulosic that accounts for above-mentioned substance gross weight 0.3～180% percentage by weight.
7. a kind of filtration lamellar body and processing procedure thereof with deodorizing filtering poison high-absorbility according to claim 1 is characterized in that: wherein, also can add the blowing agent that accounts for above-mentioned substance gross weight 0.015～0.06% percentage by weight in this material preparation step.
8. a kind of filtration lamellar body and processing procedure thereof according to claim 7 with deodorizing filtering poison high-absorbility, it is characterized in that: wherein, the mixture that this blowing agent system can be made up of tosilate (P-TOLUENESULFONATE) and alkylsulfonate (ALKYL SULFONATE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98101885A CN1067908C (en) | 1998-05-22 | 1998-05-22 | High-absorptivity filter plate with deodouring and detoxicating functions and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98101885A CN1067908C (en) | 1998-05-22 | 1998-05-22 | High-absorptivity filter plate with deodouring and detoxicating functions and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1236659A true CN1236659A (en) | 1999-12-01 |
| CN1067908C CN1067908C (en) | 2001-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98101885A Expired - Fee Related CN1067908C (en) | 1998-05-22 | 1998-05-22 | High-absorptivity filter plate with deodouring and detoxicating functions and its preparing process |
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| Country | Link |
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| CN (1) | CN1067908C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425300A (en) * | 2020-10-29 | 2022-05-03 | 谢进三 | Multifunctional active carbon substrate and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0354546A3 (en) * | 1988-08-11 | 1990-08-01 | The B.F. Goodrich Company | Porous nonwoven flat sheet |
| CA2124389C (en) * | 1993-11-16 | 2005-08-23 | Richard D. Pike | Nonwoven filter media |
-
1998
- 1998-05-22 CN CN98101885A patent/CN1067908C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425300A (en) * | 2020-10-29 | 2022-05-03 | 谢进三 | Multifunctional active carbon substrate and preparation method thereof |
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| Publication number | Publication date |
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| CN1067908C (en) | 2001-07-04 |
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